http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111849211-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C3-063 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09C1-3661 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C1-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09C3-06 |
| filingDate | 2019-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111849211-B |
| titleOfInvention | A kind of preparation method of high light resistance and high covering titanium dioxide for papermaking |
| abstract | The invention belongs to the technical field of preparation of titanium dioxide, and a preparation method of titanium dioxide for papermaking with high light resistance and high cover comprises the following steps: 1) preparing a titanium dioxide slurry; 2) heating the titanium dioxide slurry to 60° C., adding cerium salt solution and TiOCl 2 solution, add phosphate solution at the same time, and then homogenize; 3) adjust the pH value of the slurry after step 2) homogenization to 2-4, then homogenize, add FeSO 4 solution and dilute alkali solution at the same time, And maintain the pH value of the slurry at 2-4, and then homogenize; 4) Add aluminum salt solution and dilute acid or dilute alkali solution at the same time, and coat aluminum film; 5) The slurry after coating aluminum film is washed with water, flashed Steam and steam powder to obtain finished titanium dioxide. The titanium dioxide for papermaking prepared by the method of the invention has better hiding power and light resistance, and does not affect the hue of the final product. |
| priorityDate | 2019-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.